Three dimensional structures of coronal streamers, holes and CME plasmoids from multifrequency imaging observations

Abstract

Throughout the quiet Sun years 1982–1987, the Clark Lake Radioheliograph routinely mapped the solar corona on a daily basis at frequencies from 30 to 100 MHz. The Clark Lake maps show a variety of features which we have analyzed quantitatively, providing information about the three dimensional nature of large scale structures of the solar corona.